used to be the top money-maker in fremont. that is until roger jones helped to put the brakes on it. >> these things are not doing what we want them to do and there's better ways to accomplish this. >> reporter: last year jones complained to caltrans that the left-turn yellow light was too short. caltrans took a look and found no problem but, while they were out here, they noticed cars were coming off the freeway pretty fast and needed more time to stop. so according to this email in november they, instead, changed the yellow light for straight through traffic from 4.3 to 5 seconds flat. you feel like you won? >> today, here, yeah. >> reporter: with an extra .7 seconds to make it through the intersection something surprising happened. the number of red light tickets went down dramatically. >> it's averaging about 280 per month, then all of a sudden this november it's only 180. why is that? december 136. even less. january 132. february came out at 133. >> 133 here is a look at the data. look at the number of driving tickets dr